Jean antoine hubert leynen-iiougaerts



(No Model.)

J. A. H. LEHfNEN-HOUGrAER'TS.v

LAMP 0R NIGHT LIGHT.

No. 397,011. Patented Jan. 29, 189...

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NITE STATES AATENT FFICE.

JEAN ANTOINE IIUBERT LEYNEN-HOUGAERTS, OF BRUSSELS, BELGIUM.

LAMP OR NIGHT-LIGHT.

SPECIFICATION forming part of Letters Patent No. 397,011, dated January29, 1889.

Application filed April 5, 1888, Serial No. 269,749- (No model.)Patented in Belgium February 28, 1887, No. 76,518; in England March 8,1887,1I0. 3,532; in France July 7, 1887, No. 184,674, and in GermanyJuly 17, 1887,11'0. 39,112.

To all whom it may concern:

Be it known thatI, JEAN ANTOINE HUBERT LEYNEN-IIOUGAERTS, residing atBrussels, in the Kingdom of Belgium, have invented new and usefulImprovements in Lamps or fight- Lights Applicable for Use with VegetableOils, (for which no patent has been obtained in any country except inBelgium, February 28, 1887, No. 70,518; in France, July 7, 1887, No.184,671; in England, March 8, 1887, No. 3,532, and in Germany, July 17,1887, No. 39,112,) of which the Following is a specification.

In many cases burning vegetable oils for lighting purposes by means of awick causes various inconveniences, to obviate which is the purpose ofthe present invention.

Vegetable oils-such as colza, hemp, olive, nut, and the likewhich do nottake fire at ordinary temperatures unless they are associated with someother combustible substance, burn, on the other hand, very readily atthe boiling temperature. The carryin into effect industrially of thisprinciple constitutes the object of the present invention.

The apparatus consists, essentially, of a cylindrical or conical tube,the upper part of which may or may not be terminated by a littleenlargement, and which forms one piece with a floating capsule in such amanner that the oil shall keep it constantly filled and that the heat ofthe flame shall maintain constantly in elmllition the portion of oilwhich is in the upper portion of the tube.

The apparatus is shown in the accompanying drawings, in which Figure I aperspective viewof the simplified form of my lamp. Fig. II is asectional view of a modification, and Figs. III and IV are respectivelyan elevation and a plan of the Heat or cup.

A is a cylindrical reservoir for the oil. In this reservoir is placedthe float or cup B, bearing the tube O, with burner D. The capsule B maybe of any suitable shape and be made of any suitable materialsuch asmetal, glass, porcelain, &c.; but I may say that the material I preferto use for this purpose is glass.

Projecting from and communicating with the oil through the center of thebottom of plied in such a manner as to form an oil-tight joint with thecup. In practice the tube and cup are preferably and. to the bestadvantage formed integrally.

The tube C may be cylindrical or conical, and terminates, preferably, ina bulb or an enlargement, D, which is used as a burner. The cup or floatB floats on the surface of the liquid, and is so contrived, by means ofweights or any other suitable device, that the oil in the tube is alwayssubstantially flush with the upper edge of the tube. The upper end ofthe tube is of a length sufficient to allow of the oil to be easilyheated. The bulb or enlargement D serves'to facilitate this heating.

The edges of the capsule or float may be provided with four or moreprojections or arms, E, preventing the edge of the capsule from cominginto contact with the edge of the oil-reser\"oir, to which it mightotherwise adhere. It is also advantageous that reservoir A should haveacylindrical form. hen it is made of other shape, a bottomlesscylindrical tube, T, may be placed in the reservoir, in which case thefloat is kept in the middle of this tube and sinks with the oil. \Vhenthis double envelope thus formed is used, the reservoir can be easilyfed with oil without fear of disturbing the float.

The mode of action is as follows: After the reservoir is filled with oilthe float must be placed in it, care being taken that the oil reachesabout to the upper edge of the burner without being able to overflowinto the capsule. The upper part of the tube C is then heated until theoil commences to boil and catches fire, after which the apparatus itselfmaintains the heat and the oil continues to burn. Obviously the size ofthe flame may be regulated byincreasin or diminishing the diameter ofthe tube, or two concentric tubes, 0 0', may be used, the oil fillingthe annular space between them, and to these lamps glasses, shades, the,may be attached, as with ordinary lamps.

Having thus described my said invention and in what manner the same hasto be pen formed, what I claim is 1. In a lamp, the combination, with areserthis float or cup B is a tube, C, fixed or apvoir and floatcarrying the burner, of :1 verti- 3. In a lamp, the combination, withthe reseal cylinder in the reservoir surrounding The ervoir, of a floatand two concentric tubes exfloat for guidingit in its upward anddowntending from the bottom of the float and form- WfLl'd movement,subsi'nntiallyasherein shown ing' an annnla'rspa'ee in which the oil mayrise 15 5 and described. to be ignited, substantially as shown and de-2. In a lamp, the combination, with the resscribed. 9 l l to be JEANANTOINE HUBER LEYNEN-IIOUGAERTS. supplied. by said reservoir, and armsor projeetionsE, for preventing contact of the float \Yitnesses: 10 withthe sides of The reservoir or cylinder, as AUG. FOERIso, set forth. A J.STEINER.

